BIT-Gorakhpur-ML-wrkshp

How many types are available in machine learning?

• 3

• 2

• 4

• 1

The new features created in PCA are known as

• Eigen vectors

• Eigen values

• Principal Compenents

• Primary attribute

Which of the following will be Manhattan distance between the two data points A(4,3) and B(2,3)?

• 2

• 1

• 4

• 8

Which of the following options is true about the kNN algorithm?

• It can be used only for regression

• It can be used only for classification

• It can be used for both classification and regression

• It is not possible to use for both classification and regression

Out of 200 emails, a classification model correctly predicted 150 spam emails and 30 ham emails. What is the accuracy of the model?

• 10%

• 80%

• 86%

• 90%

Which of the following is the measure of cluster quality?

• distance

• accuracy

• precision & recall

• purity

Supervised machine learning is as good as the data used to train it.

• true

• false

The model learns and updates itself through reward/punishment in case of

• supervised

• unsupervised

• reinforcement

• semi-supervised

Which of the following is a performance measure for regression?

• error rate

• RMSE

• accuracy

• recall

Choose the proper alternatives for machine learning (ML) and artificial intelligence (AI), (A) ML is an alternative method of programming intelligent computers. (B) The aims of ML and AI are significantly different. (C) Machine learning is a collection of algorithms that converts a dataset into software. (D) Artificial intelligence (AI) is software that can simulate the human mind.

• A,B,D

• A,C,D

• B,C,D

• ALL of Above